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mbhatti_95

  • 2 years ago

Please solve giving step-by-step detail: lim x-> pi/2 (tanx(^cosx))

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  1. sauravshakya
    • 2 years ago
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    |dw:1353247002489:dw|IS your question?

  2. mbhatti_95
    • 2 years ago
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    yes!

  3. sauravshakya
    • 2 years ago
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    |dw:1353247058619:dw|

  4. sauravshakya
    • 2 years ago
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    And anything to the power 0 is 1

  5. sauravshakya
    • 2 years ago
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    Does it help?

  6. mbhatti_95
    • 2 years ago
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    anything except infinity as tan(pi/2) = infinity.. infinity ^ zero is undefined.

  7. cinar
    • 2 years ago
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    take log first

  8. cinar
    • 2 years ago
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    cosx log tanx=(log tanx)/(1/cosx) = infinity /infinity use L'hospital rule

  9. mbhatti_95
    • 2 years ago
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    how'd you get 1/cos x?

  10. cinar
    • 2 years ago
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    they equal each other

  11. cinar
    • 2 years ago
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    if you flip over RHS you can get LHS

  12. cinar
    • 2 years ago
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    and answer is e

  13. mbhatti_95
    • 2 years ago
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    ok thanks i get it now :)

  14. cinar
    • 2 years ago
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    answer is 1 I made a mistake..

  15. mbhatti_95
    • 2 years ago
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    yeah i just wasnt able to get infinity/infinity. can solve the rest. ty

  16. cinar
    • 2 years ago
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    np..

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